Management of the draft



H. STRICKLAND.vv Cookig Stove.

Patented June. 27, 1840.

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HORACE STRIOKLAND, OF BRADFORD, VERMONT.

MANAGEMENT 0F THE DRAFT, dw., IN COOKING-STOVES.

Specification of Letters Patent N 0. 1,651, dated June 27, 1840.

To aZZrwwm t may concern.'

Be it known that I, HORACE STRICKLAND, of Bradford, in the county of Orange and State of Vermont, have invented certain Improvements in the Manner of Constructing Stoves for Cooking, by which improved construction the advantages of two different plans are combined in one stove, which stove is thereby equally adapted for use at all seasons of the year; and I do hereby declare that the following is a full and exact description thereof.

In the accompanying drawings Figure l, is a perspective view of the exterior of m stove.

The top A, I make of one horizontal plate, and usually with four boiler holes, which, if

' preferred, may be furnished with elevated conical rims.

B, B, are two furnaces which stand over two openings prepared for them in the back end of said plate, and these are connected to the exit pipe, C, by the small pipes D, D, through which the draft from'them escapes. These furnaces are provided with grate bars which occupy the offsets at a, a, and below this grate they are each furnished with a small drawer, as shown at b I), which serve to catch the ashes which fall through said grates, and also serve as dampers and regulators to the re which may be kindled in the furnaces. The fire chamber in front of the stove does not differ from such as have been previously made and used. It has folding doors in front, and a door at each end, the places for which are shown in the drawn ing. I usually, also, make a slide grate at 0, c, in front, to reflect light, and use a sliding hearth to cover the ash pit as in other stoves. The grate of the lire chamber I make to rise upon ledges, so that it may be placed near to the bo-ilers, and contain less fuel when required for summer use.

The oven E, is surrounded by ues at the top and bottom, and in front and rear, which are governed by valves, the peculiarities in the arrangement of which will be presently explained. To prevent the undue heating of the front plate of the oven I have an open space between the back plate of the re chamber, and the fore plate of the fore oven flue, which space is entirely open at bottom, and the opening F, at the side also leads intoit, thus admitting a free circulation of air through this space. By this provision t-he back plate of the tire chamber is also prevented from burning out.

The iue, or space, leading from the fire chambers to` the back end of the stove immediately below the top plate A, I divide into three parts by vertical partitions extendingV from front to back; and by means of suitable dampers I direct the draft along these spaces in such a manner as perfectly to regulate the heat. Fig. 2, is a top view of the stove with the tcp plate removed, for the purpose of showingV t-he arrangement of these lues, and the other parts thereby brought into sight.

G, G, is the top plate of the oven, and d, d, partitions which extend from the front oven plate e, e, to the back plate of the stove f, f. Between the back plate of the oven at g, g, and the plate f, f, there is a descending flue, which is continued under the oven, and up the fro-nt of it, where it opens at L, L. In Fig. 3, which is a vertical section along the middle of the stove, from front to back,

this course of the flue is shown, the same letters being used in each of the figures to designate like part-s.

H, is a sliding damper which is used to,

close the passage from the middle division of the upper flue into the back descending flue when required.

The front plate of the oven e, e, shown separately in Fig. 4, has an elevation at e which closes that end of the middle top flue, while the two side divisions are left open for a direct draft from the fire chamber. An opening in the plate e, e, at z', i, allo-ws a passage through it into the fore end of the middle top flue, as shown at I, is the back plate of the fire chamber, between which and the fore plate of the oven flue is the open space F, Fig. 3, above mentioned.

A valve or damper 7c, extends along the opening of the front oven flue, its upper edge being shown by the dotted lines in Fig. 100

2, which damper is turned by the handle 1c.

VVhenit lies against the plate e, it allows a free passage up or down t-he fro-nt flue, and

closes the opening i; but when turned against the plate e, it closes the front lue,and leaves ghe passage i, j, open into the middle top At L, Fig. 1, an opening is shown for removing ashes from the lower flue. This opening is kto be furnished with a stopper. Y

TheV depth of the upper lues should be from three to four inches, the back flueand that under the bot-tom about three inches, the

stove, I now proceed toshoW their operation anduse.` p

V When the two dampersI-I, andV 7a aremade to close the front and back openings f to which they are adapted, (the front damper being turned against the plate Z,) the draft passes along the side division over the top of the oven, At-hen dovvn'the back, and under the bottom, and up the fro-ntflue, to the opening i, z', through Whichit is conducted intothe middle top space, and back to the exit pipe C. This is the first method of conducting the draft around the oven. The second plan is by opening, or reversing theV positi'on'of both the dampers. Y The main draft Will be then directly from the fire chamber down the front flue, under the bottom, and up the back to the exit pipe. AV part of the, draft will also pass over the oven, from frontfto back, along the upper side flues. By the use of these two dampers the fdraftrmay thus be conducted around the oven in-tWo different Ways, or be carried .around it.

over it Without passing said dampers 4,The tvvo small furnaces B,VB,j1vvill be found specially convenientlforsummer use and they may beusedfat anytime by 'burning coal or Wood in them Without interfer ing with the otherparts" of the stove.

What I claim as my invention, and desire lto secure byfLettersjPatent', in the above de- Al. The particularmanner in which I have 1arrangedthe flues, around thevovenyby di'- viding thefupper` ue into. three parts, L and .governing the passage ofQ-the draft through the middle section" by means of the tWo dampers, operating as hereinset forth.

-2. I claim,also,` the manner in Which I have combined and connected the furnaces B, B, With the stove and its'iiue` for the purposefdescribed.

I do notrcl'aim? the mere carrying-of the n flue around the oven, nor the dividing of been beforedo'ne; nordo I claim theemploymentfof valves,- or `dampers generally;v `but I- limitmyV claim invthese particularsto the special arrangementmadeby me of the and flues, as herein set forth. HORACE 1 STRICKLA'ND: Vitnesses: i V n i vADAMS PRESTON,

I. B. PICKETT, Jr.

ithe upperflue into three sections, this having t 

